Lawn sprinkler



L. E. HOLLAND LAWN SPRINKLER Dec. 8, 1936.

v Filed Feb. 21, 1955 INVENTOR. 1.00/3 5 fla /had ATTORNEY.

Patented Dec. 8, 1936 UNITED STATES PATENT OFFICE LAWN SPRINKLER Louis E. Holland, Kansas City, Mo. Application February 21,1935, Serial No. 7,521 8 Claims. (c1. 293-56) This invention relates to lawn sprinklers and has for its principal objects to provide a simple, inexpensive construction; to provide a better and more uniform spread and atomization of the water under low water pressures; and to provide a sprinkler construction capable of being readily disassembled for shipping purposes. 1

In accomplishing these and other objectsof the invention, as hereinafter pointed out, I have provided improved details of structure, the .preferred form of which is illustrated in the accompanying drawing, wherein:

Fig. 1 is a perspective view of a. sprinkler con.- structed in accordance with the present invention.

,Fig. 2 is a similar view showing parts of the sprinkler in disassembled spaced relation to better illustrate their construction and assembly.

Fig. 3 is a vertical section through the sprinkler on the line 3-3, Fig. 1.

Fig. 4 is a vertical section on the line Fig. 3.

Fig. 5 is a plan view of the sprinkler.

Fig. 6 is an enlarged detail perspective view of the impeller for effecting spread and atomization of the water.

Fig. 7 is a detail perspective view of the sprinkler jet member partly in section to better illustrate the water jet openings.

Fig. 8 is a plan view of the jet member.

7 Referring more in detail to the drawing:

I designates a water sprinkler including abase '2, a body member 3, a jet member 4, and an impeller 5.

The base 2 is preferably formed of a wire having the intermediate portions thereof bent to form a supporting ring 6 and having the ends 1 and 8 bent inwardly in spaced parallel relation with a diameter of the ring to terminate in upwardly extending fingers 9 and I located in a diametrical plane extending at right angles to the parallel end portions 1 and 8.

The body member 3 includes a hollow L shaped fitting ll having a horizontal branch l2 mounting a union l3 for connecting a hose M as in conventional practice. The other branch, i of the L extends upwardly in vertical relation to the base and has an enlarged externally threaded head portion l6 for mounting the jet member 4 as later described. Formed on the sides of the body member intermediate the respective branches thereof are laterally extending lugs 11 and I8 provided with downwardly opening sockets l9 and to receive the fingers 9 and I0 whereby the body member is detachably supported on the base. The spacing of the fingers 9 and I0 is preferably differential from the spacing of the sockets l9 and 20 so. that when the fingers are adjusted to engage inthe sockets, the tension in'the parallel portions 1 and 8 will frictionally retain the body member in rigid position on the base.

D However, the body member may be readily removed from the base by grasping the parallel portions 1 and 8 thereof and pulling outwardly upon the body member. The body member may be readily reassembled on the base by adjusting spacing of the fingers 9 and In so that they will be in alignment to engage within the sockets i9 and 20 when the body member is inserted thereon.

This is an important feature of the present invention' as it provides for ready disassembly of the parts to facilitate packing of the sprinkler for shipping purposes.

The jet member 4 includes a cap having a disk or head portion 2| provided with a depending annular flange 22 that is equipped with internal threads 23 to engage the external threads on the enlarged head portion l6 of the body member; Thev disk shaped portion of the cap is provided with an annular inset shoulder 24 in which is formed a plurality of jet openings 25 arranged in circular series and having their axes extending upwardly and outwardly in a forward direction relatively to rotation of the impeller, as

clearly shown in Figs. 5 and 8.

. It is thus apparent that water admitted through the body member will be discharged through the jet openings 25 in a plurality of upwardly and outwardly directed jets in planes tangential to a circle concentric with the axis of the cap. Formed concentrically of the cap and extending from the respective sides of the disk portion are inner and outer bosses 26 and 21 having an I internally threaded opening 28 located in the axis thereof for mounting a spindle screw 29 which =carries the impeller 5.

The impeller 5 includes a rotor or deflector 30 .having a hub3l provided with an oilless bushing '32 which is rotatably mounted on the spindle screw and retained between the boss 21 and the head 33 of the screw as shown in Figs. 3 and- 4.' 3 Extending outwardly from the hub is a horizontal web portion 34 substantially conforming in diameter to the vertical wall 35 of the shoulder 24 and which terminates in an upwardly and outwardly extending cone-shaped deflector flange 36 so arranged that the jets of water are spread outwardly thereby and into the path of travel of a plurality of paddle blades 31 forming a part of the impeller.

The paddle blades 31 comprise flat strips having their inner ends 38 fixed to the outer periphery of the cone-shaped deflector 30 in tangential relation with the disk portion 34 thereof and in such a manner that the outer ends 39 intersect the jets of water discharged through the jet openings 25. The blades project beyond the upper periphery of the deflector 30 and are of greater width at their outer ends 39 to form extended surfaces 40 against which the jets impinge to efiect rotation of-the impeller.

In order to support the outer ends of the paddle blades, they are connected by a ring 4| that is attached to the under edges 42 thereof and out-of the path of the jets as best illustrated in Fig.4.

It is apparent that the jets are directed in-outwardly impinging relation and at an angle to the paddles 3! to effect rotation of the impeller in the direction of the arrow indicated in .Fig. 5 atsubstantially high speed. As the blades intersect the jets the impact thereof against the water thoroughly atomizes and disperses it centrifugally over a substantially wide area even though the water pressure may be relatively low.

In assembling a device constructed as described, the body member 3 is mounted upon the fingers Sand [0 of the base 2 and the jet cap 4 is screwed thereon after which the impeller 5 is applied and secured by the spindle screw 29.

The hose I4 is then secured by the union I3 so that the Water flowing therethrough is discharged through the jet openings 25 in an upward and outward direction relatively to the forward rotation of the impeller as indicated by the arrow.

The jets of water thus impinging-against the blades effect rotation of the impeller in such a manner that the blades successively intersect the jets to cause wide dispersion and uniform distribution of the water over a large area.

From the foregoing, it is apparent that I have provided a simple, inexpensive construction, which may be readily disassembled for shipping purposes and reassembled by the user and which may be effectively operated to disperse and distribute water with low pressures.

What I claim and desire to secure by Letters Patent is:

1. A sprinkler including a support, an inverted cone-shaped deflector carried by the support, impeller blades extending tangentially from said deflector, means for discharging a jet of liquid in angular contact with the impeller blades to effect rotation of the deflector and successive movement of the blades across said jet for atomizing and spreading the liquid, and a ring connectlngly spacing the outer ends of the blades.

2. A sprinkler including a base, a body member carried on the base, means for connecting a source of water supply to the body member, a jet cap on the body member having a plurality of inclined jet openings arranged in circular series for discharging a series of jets upwardly and outissuing from said jets, and a ring connectingly' spacing the outer ends of the blades.

3. In a sprinkler, a base including a ring having inwardly extending distortable ends terminating in spaced vertical fingers adjacent the center of the ring, and a sprinkler body having sockets spaced apart a distance different from the spacing of said fingers and engageable with said fingers to support said body.

4. In a sprinkler, a base including a ring having inwardly extending distortable ends terminating in spaced vertical fingers adjacent the center of the ring, a sprinkler body, and lugs extending laterally from said body and having sockets spaced apart a distance different from the spacingof said fingers and engageable with said fingers to support said body.

5. A sprinkler including a support, an inverted cone-shaped deflector carried by the support, upwardly extending impeller blades fixed tangentially to said deflector, means for discharging a jet of liquid in angular contact with the impeller blades to elTect actuation of the deflector and successive movement of the blades across said jet for atomizing and spreading the liquid, and a ring connectingly spacing the outer ends of the blades.

6. A sprinkler including a support, an inverted cone-shaped deflector carried by the support, impeller blades tangentially fixed to the conical surface of the deflector and having enlarged outer ends extending upwardly and outwardly at the angle of said conical surface, and means for discharging a jet of liquid in angular contact with the impeller blades and in the direction of the enlarged ends to efiect rotation of the deflector and successive movement of the blades across said jet for atomizing and spreading the liquid.

7. A sprinkler including a base, a body member carried on the base, means for connecting a source of water supply to the body member, a jet cap on the body member having a plurality of inclined jet openings arranged with their axes tangential to a circle concentric with the axis of the jet cap for discharging a series of jets upwardly and outwardly therefrom in a direction of rotation about the axis of the cap, a rotor carried by the jet cap in the axis thereof, and a plurality of flat impeller blades arranged tangen- 1,

tially on said rotor and having enlarged outer ends extending above the rotor to intersect said jets at an angle thereto for dispersing water issuing from said jets.

8. A sprinkler including a support, an inverted cone-shaped deflector carried by the support, upwardly extending impeller blades fixed tangentially to the conical surface of the deflector and gradually increasing in width toward their outer ends, and means for discharging an angular jet' of liquid in upward angular contact with the impeller blades in-the direction of their larger ends to effect rotation of the deflector and successive movement of the blades across said jet for atomizing and spreading the liquid.

LOUIS E. HOLLAND. 

